Free Small Biz Tools

by api.freesmallbiztools.com · remote · no sign-in to list tools · v1.0.0 · published by com.freesmallbiztools.api

Free quote and late-fee calculators, paid reminder emails and a $1 small-business tool stack report.

Changes · 6

Compare Registry entry

7 tools: 6 change things and 1 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things6Claude Code: ask: see these tools
Only reads1Claude Code: allow: see these tools

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http tools https://api.freesmallbiztools.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

7 tools

Changes things 6Creates or changes something that can be changed back.Claude Code: ask

late_feeFree.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Free. Late fee on an overdue invoice (simple interest by day: monthly, annual or daily percent, or a flat fee), with days late, total due and a state-cap caution.
Annotations the server declares
- title: Late fee (free)
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
late_fee_noticeLate fee plus a ready-to-send reminder email (subject and body) for an overdue invoice, in a polite, firm or final tone.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Late fee plus a ready-to-send reminder email (subject and body) for an overdue invoice, in a polite, firm or final tone. Costs $0.01 USDC via x402; invalid input is not charged.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
pricingFree.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Free. Prices of the paid tools and the receiving address.
Annotations the server declares
- title: Prices (free)
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
quote_packGood / better / best quote pack from line items: three priced options, deposit, validity, standard terms and a cover note.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Good / better / best quote pack from line items: three priced options, deposit, validity, standard terms and a cover note. Costs $0.05 USDC via x402; invalid input is not charged.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
quote_totalsFree.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Free. Totals for a quote or estimate: line amounts, subtotal, discount, tax, total, deposit and valid-until date.
Annotations the server declares
- title: Quote totals (free)
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
small_business_stack_reportA free/freemium software stack for a small business, one pick per need with alternatives, from freesmallbiztools.com's checked listings (vendor quote and check date).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
A free/freemium software stack for a small business, one pick per need with alternatives, from freesmallbiztools.com's checked listings (vendor quote and check date). Costs $1 USDC via x402; invalid input is not charged.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true

Only reads 1Looks things up and changes nothing.Claude Code: allow

list_toolsFree.No findings
Why it is in this group
- The name "list_tools" says "list": a word for reading.
Description, as the server wrote it
Free. freesmallbiztools.com listings (free/freemium small-business tools, vendor quote and check date), optionally for one category slug.
Annotations the server declares
- title: List tools (free)
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:32 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 6
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: none
RFC 9728 protected resource metadata: none
Authorization servers: none
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 6 tools that change things (6 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://api.freesmallbiztools.com/mcp: tools/list returned 7 tools to an anonymous client, including quote_totals (write), late_fee (write), pricing (write), late_fee_notice (write), quote_pack (write) and 1 more
What this check looks for

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http tools https://api.freesmallbiztools.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__tools__list_tools"
    ],
    "ask": [
      "mcp__tools__quote_totals",
      "mcp__tools__late_fee",
      "mcp__tools__pricing",
      "mcp__tools__late_fee_notice",
      "mcp__tools__quote_pack",
      "mcp__tools__small_business_stack_report"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as tools. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.freesmallbiztools.api/tools/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Anlyon alternative

6 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Compare with other servers for the same product.

Source: MCP Registry. Synced Oct 21, 2026, 17:55 UTC.

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